Meh... priority shmiority. I ordered back in January too. I got the first part in ~2 weeks, but am still waiting on the second. I did not get my second half when some others apparently did (and no I didn't get a call or anything).
If I had to do it again... I dunno. The rock is nice to look at I admit, but there is more to a reef tank than rock (can anyone say corals & fish?)
There are enough posts here that you should be able to make an informed decision. There are positives - nice looking rock, diversity of life, less environmentally destructive than other methods. Then there are also negatives - many of the hitchikers are bad including gorilla crabs, predatory whelks, and mantis shrimps (yes I had all 3). And of course the wait in my case is now at 4+ months... But hopefully that will change with summer weather.
Waiting really stinks... I almost wish TBS would stop trying to fill orders in the winter. It's obvious they can't keep up either due to weather or demand, and it's frustrating to us.